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> Unreal Engine API Reference > Plugins > GeometricObjects > Parameterization > UE::UVPacking::CreateUVIslandsFromMeshTopology

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UE::UVPacking::CreateUVIslandsFromMeshTopology

Create UV islands from a triangle mesh connectivity.

Windows

MacOS

Linux

References

Module	GeometricObjects
Header	/Engine/Plugins/Experimental/GeometryProcessing/Source/GeometricObjects/Public/Parameterization/UVPacking.h
Include	#include "Parameterization/UVPacking.h"

Syntax

namespace UE
{
    namespace UVPacking
    {
        template<typename TriangleMeshType>
        void UE::UVPacking::CreateUVIslandsFromMeshTopology
        (
            TriangleMeshType & Mesh,
            TArray< TArray< int >> & IslandsOut,
            TFunctionRef< bool)> IncludeTri
        )
    }
}

Remarks

Create UV islands from a triangle mesh connectivity. Assumes the triangles are already split at UV seams, but topologically connected otherwise. Not recommended for meshes that already have built-in edge connectivity data.

Parameters

Parameter	Description
Mesh	The mesh to create islands for
IslandsOut	The triangle IDs for each island
IncludeTri	Optional function to filter which tris are assigned to islands

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